[INFO] fetching crate steel-copper 0.1.0...
[INFO] testing steel-copper-0.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate steel-copper 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate steel-copper 0.1.0
[INFO] finished tweaking crates.io crate steel-copper 0.1.0
[INFO] tweaked toml for crates.io crate steel-copper 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate steel-copper 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate steel-copper 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unic-ucd-version v0.7.0
[INFO] [stderr]   Downloaded tinyvec v0.3.3
[INFO] [stderr]   Downloaded unic-segment v0.7.0
[INFO] [stderr]   Downloaded unic-ucd-segment v0.7.0
[INFO] [stderr]   Downloaded unic-char-range v0.7.0
[INFO] [stderr]   Downloaded slug v0.1.4
[INFO] [stderr]   Downloaded unic-common v0.7.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.16
[INFO] [stderr]   Downloaded proc-macro2 v1.0.19
[INFO] [stderr]   Downloaded pear_codegen v0.1.4
[INFO] [stderr]   Downloaded unic-char-property v0.7.0
[INFO] [stderr]   Downloaded error-chain v0.12.2
[INFO] [stderr]   Downloaded addr2line v0.13.0
[INFO] [stderr]   Downloaded pear v0.1.4
[INFO] [stderr]   Downloaded tera v0.11.20
[INFO] [stderr]   Downloaded miniz_oxide v0.4.0
[INFO] [stderr]   Downloaded rocket_contrib v0.4.5
[INFO] [stderr]   Downloaded state v0.4.1
[INFO] [stderr]   Downloaded yansi v0.5.0
[INFO] [stderr]   Downloaded smallvec v1.4.1
[INFO] [stderr]   Downloaded zeroize v1.1.0
[INFO] [stderr]   Downloaded ghash v0.2.3
[INFO] [stderr]   Downloaded polyval v0.3.3
[INFO] [stderr]   Downloaded universal-hash v0.3.0
[INFO] [stderr]   Downloaded block-cipher-trait v0.6.2
[INFO] [stderr]   Downloaded aead v0.2.0
[INFO] [stderr]   Downloaded devise v0.2.0
[INFO] [stderr]   Downloaded devise_core v0.2.0
[INFO] [stderr]   Downloaded devise_codegen v0.2.0
[INFO] [stderr]   Downloaded rocket-include-tera v0.4.19
[INFO] [stderr]   Downloaded deunicode v0.4.3
[INFO] [stderr]   Downloaded backtrace v0.3.50
[INFO] [stderr]   Downloaded rocket_http v0.4.5
[INFO] [stderr]   Downloaded indexmap v1.5.0
[INFO] [stderr]   Downloaded hashbrown v0.8.1
[INFO] [stderr]   Downloaded cookie v0.11.3
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.8
[INFO] [stderr]   Downloaded hkdf v0.8.0
[INFO] [stderr]   Downloaded subtle v2.2.3
[INFO] [stderr]   Downloaded aes-soft v0.3.3
[INFO] [stderr]   Downloaded walkdir v2.3.1
[INFO] [stderr]   Downloaded net2 v0.2.34
[INFO] [stderr]   Downloaded lazycell v1.2.1
[INFO] [stderr]   Downloaded inotify-sys v0.1.3
[INFO] [stderr]   Downloaded globwalk v0.8.0
[INFO] [stderr]   Downloaded notify v4.0.15
[INFO] [stderr]   Downloaded filetime v0.2.10
[INFO] [stderr]   Downloaded rocket-include-static-resources v0.9.5
[INFO] [stderr]   Downloaded rocket_codegen v0.4.5
[INFO] [stderr]   Downloaded unic-ucd-segment v0.9.0
[INFO] [stderr]   Downloaded globset v0.4.5
[INFO] [stderr]   Downloaded rocket-etag-if-none-match v0.3.5
[INFO] [stderr]   Downloaded html-minifier v3.0.3
[INFO] [stderr]   Downloaded macro-utils v0.1.3
[INFO] [stderr]   Downloaded utf8-width v0.1.4
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.8
[INFO] [stderr]   Downloaded cow-utils v0.1.2
[INFO] [stderr]   Downloaded rocket v0.4.5
[INFO] [stderr]   Downloaded aes v0.3.2
[INFO] [stderr]   Downloaded unic-segment v0.9.0
[INFO] [stderr]   Downloaded rc-u8-reader v2.0.12
[INFO] [stderr]   Downloaded debug-helper v0.3.10
[INFO] [stderr]   Downloaded educe v0.4.13
[INFO] [stderr]   Downloaded html-escape v0.2.6
[INFO] [stderr]   Downloaded aesni v0.6.0
[INFO] [stderr]   Downloaded tera v1.4.0
[INFO] [stderr]   Downloaded parse-zoneinfo v0.3.0
[INFO] [stderr]   Downloaded syn v1.0.35
[INFO] [stderr]   Downloaded aes-gcm v0.5.0
[INFO] [stderr]   Downloaded num-bigint v0.3.0
[INFO] [stderr]   Downloaded ignore v0.4.16
[INFO] [stderr]   Downloaded minifier v0.0.36
[INFO] [stderr]   Downloaded crc-any v2.3.5
[INFO] [stderr]   Downloaded libc v0.2.72
[INFO] [stderr]   Downloaded chrono-tz v0.5.2
[INFO] [stderr]   Downloaded gimli v0.22.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 42f2998ccfd5ca0c8678c559ba587d21d1f093da783fb4199cc734f493d4f554
[INFO] running `Command { std: "docker" "start" "42f2998ccfd5ca0c8678c559ba587d21d1f093da783fb4199cc734f493d4f554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42f2998ccfd5ca0c8678c559ba587d21d1f093da783fb4199cc734f493d4f554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "42f2998ccfd5ca0c8678c559ba587d21d1f093da783fb4199cc734f493d4f554" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42f2998ccfd5ca0c8678c559ba587d21d1f093da783fb4199cc734f493d4f554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "42f2998ccfd5ca0c8678c559ba587d21d1f093da783fb4199cc734f493d4f554" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling pear_codegen v0.1.4
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling subtle v2.2.3
[INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.1.4`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_RELEASE_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/release/build/pear_codegen-f7bdf51a5376de9a/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Pear requires a 'dev' or 'nightly' version of rustc.
[INFO] [stderr]   Installed version: 1.99.0 (2026-09-26)
[INFO] [stderr]   Minimum required:  1.31.0-nightly (2018-10-05)
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (398) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pear_codegen-0.1.4/build.rs:24:13:
[INFO] [stderr]   Aborting compilation due to incompatible compiler.
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x636b1bcd3e61 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x636b1bce556a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stderr]      2:     0x636b1bcd7f3c - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x636b1bcb7386 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x636b1bccfcc1 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stderr]      5:     0x636b1bccfe7b - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x636b1bcb69ec - std[70759c8f55707aa4]::panicking::begin_panic::<&str>::{closure#0}
[INFO] [stderr]      7:     0x636b1bcb02e9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::begin_panic<&str>::{closure#0}, !>
[INFO] [stderr]      8:     0x636b1bcad82b - std[70759c8f55707aa4]::panicking::begin_panic::<&str>
[INFO] [stderr]      9:     0x636b1bc96e4a - build_script_build[f5c2e5733ff4abe0]::main
[INFO] [stderr]     10:     0x636b1bc98bd3 - <fn() as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     11:     0x636b1bc966b6 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     12:     0x636b1bc96869 - std[70759c8f55707aa4]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     13:     0x636b1bccf0f9 - std[70759c8f55707aa4]::rt::lang_start_internal
[INFO] [stderr]     14:     0x636b1bc96671 - std[70759c8f55707aa4]::rt::lang_start::<()>
[INFO] [stderr]     15:     0x636b1bc98c55 - main
[INFO] [stderr]     16:     0x75e93f99f601 - <unknown>
[INFO] [stderr]     17:     0x75e93f99f718 - __libc_start_main
[INFO] [stderr]     18:     0x636b1bc95bd5 - _start
[INFO] [stderr]     19:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "42f2998ccfd5ca0c8678c559ba587d21d1f093da783fb4199cc734f493d4f554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f2998ccfd5ca0c8678c559ba587d21d1f093da783fb4199cc734f493d4f554", kill_on_drop: false }`
[INFO] [stdout] 42f2998ccfd5ca0c8678c559ba587d21d1f093da783fb4199cc734f493d4f554
